There are numerous precautions and warnings with oxybutynin to be aware of before starting treatment. Prior to taking the drug, tell your healthcare provider if you have high blood pressure, kidney disease, or congestive heart failure. Precautions and warnings with oxybutynin also include people who are allergic to any components of the medication or who have urinary retention, uncontrolled glaucoma, or delayed gastric emptying.
Any allergies, including allergies to food, dyes, or preservatives.
Also, let your healthcare provider know if you are:
Pregnant or thinking of becoming pregnant
Breastfeeding.
Make sure to tell your healthcare provider about all other medicines you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.